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• Within 10 seconds after power-on, hold on the call button for 3 seconds to enter the setting state

• The indicator LED keep blinking to indicate it enter to setting state and it will exit if there is no any action in 10 seconds

• In the setting state, hold on the call button again for 3 seconds to initialize

• Exit the setting state after setup

step1. 进入设置状态

按住DT616的Call键上电并保持3s，直到听到3次”BP”音后松开（每秒会响“BP”一声），进入主机生产设置状态，指示灯慢闪；[此状态维持10s，10s内无操作自动退出]

step2. 出厂初始化设置

按一次Call键执行出厂初始化操作，响”BP+”一声长音后完成并退出；

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